Article
[Populational speciation or chromosomal speciation? About the book of Jean de Grouchy "From the birth of species to the aberrations of life" (author's transl)].
La semaine des hopitaux : organe fonde par l'Association d'enseignement medical des hopitaux de Paris - 1 Jan 2000
Ruffié J
Abstract excerpt
According to Jean de Grouchy, the emergence of a new species is dependent on an "acceptable" chromosomic rearrangement, which passing from the heterozygous state (in the original bearer) to the homozygous state (in some of his enbred offspring) becomes definitively established and creates a population sexually isolated from its acestors. He is thus using the idea of karyotype to develop the typological theory put...
Topics
- Adaptation, Physiological
- Animals
- Biological Evolution
- Chromosomes
- Cytogenetics
- Genetics, Population
- Humans
- Mutation
- Polymorphism, Genetic
- Species Specificity